Combined spreader and clamp for tires.



S. E. N OLD. y COMBINED SPREADBR AND CLAMP PoR TIRES.

v APPLICATION FILED NOV. 14, 1911.

l ,O9 1-.,1 64. Patented Apr. 21, 1914.

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SOLOMON E. NOLD, OF ALLIANCE, OHIO. ASSIGFNOR T0 THE ALMI'NUM FOUNDRY COIv1FANY, OF ALLIANCE, OHIO, A CORPORATION' 0F OHIO.

COMBINED SPREADER AND CLAMP FOR TIRES.

noemer..

To o] nuto/fa it mm/ concern.'

l Y Be 1t known that I, SoLoMoN E. lyoLD, a citizen of the United States, and a resident oitAllianc/e, in the county of Stark and State' ci Ohio, have invented certain new and useful 'Improvements in Combined Spreaders and Clamps :te-r Tires, of which the following is a specification.

My present invention relates to improvements in combined spreader and clamp for tires, especially designed for use in .connecting the valve stem to the tire proper.

One object of the present invention is to provide spreader and clamp that can be easily attached and to s0 'form the spreader or clamp plate that practically an air tight joint can be produced without the addition of separate parts and another object is to so form the spreader or clamp plate that it will not injure the inner tube and a still further object is to form thev plate of highly non-corrosive material. These objects tojgether with other objects, readily apparent to those skilled in the art, I attain by the construction illustrated in the accompanying drawings, although my invention may be embodied in a variety of other mechanical forms, the construction illustrated being chosen by way of example.

.In the accompanying drawings-Figure 1 is a transverse section of the tire showing the parts properlyjassembled. Fig. 2 is a detached view of the spreader plate or clamp showing` its inner side. Fig'. 3 is alongitudinal section.

Similar numerals. of reference indicate corresponding' parts in all the vigures of the drawing.

In the accompanying` drawing, 1 represents the ordinary tire' commonly used in pneumatic tires and within which is located the ordinary inner tube 2. The tire 1 is provided with the usual ribs 3, which ribs are intended to be snugly seated in the grooves 4 formed by the inward curved flanges 5 formed upon the edges of the rim G. The construction above described is the ordinary construction and has no specilic reference to the present invention so far as the detailed construction is concerned. The valve stem 7 is located through the rim, the spreader plate or clamp 8 and the inner tube 2, and is so located so that air can be forced into the inner tube 2 for the usual purpose.

Specification of Letters Patent.

Application filed November 14, 1911.

Patented Apr. 21, 1914. serial No. 660,242.

The spreader plate or clamp 8 is so formed -as to shape and size .that it will fit and Vpress against the inner faces of the tipe 1 substantially opposite the ribs 3 so that when said'spreader plate is drawn. toward' 7 it is necessary to so,connect the same that f the inner tube, will be properly clamped and at the same time an air tight oint provided. lt is also well understood that more or less corrosion takes place, consequently/'it' 1s of importance to provide a spreader plate or clamp of non-corrosive material and in order to provide for this advantage I prefer to form the plate of aluminum so that the spreader plate need not be plated with noncorrosive material or separate plates usedl at the point of contact as between the spreader plate and the inner tube 2. inner face of the spreader plate 8 is pros vided with the ribs and grooves 10 and 11, which ribs and grooves are located around and adjacent to the valve sten aperture 12, through which aperture, said valve stem passes. For the purpose of preventing injury to the inner tube 2 by the clamping action of the spreader plate 8, the outer ribs 10 are formed of greater height so that the greater clamping action or force will be ree moved a short distance from the aperture 13 formed in the tube 2, thereby preventing any injury and at the same time securely and snugly clamping the inner tube 2 between the spreader plate or clamp S and the valve stem head 14, which head is also provided with ribs and grooves as best illustrated in Fig. 1.

lt will be understood that by forming the outer ribs l0 somewhat higher the clamping surface of the spreader plate S will beslightly eoneavedI or dished, thereby protecting the inner tube 2'at the place where the valve stem 7 is located or in other words protecting the inner tube 2 to such an eX- tent that it will not be easily injured and The lo understood that at the Sametime forming a practicaliy air tight cinnnection.

It Will be understood that the spreader plate 8 should be curved longitudinally s o as to properly t the annuiar curvature of the tire proper. By forming the spreader or clamp .plate 8 of `highly non-corrosive material the danger of dsintegrating the inner tube is greatly reduced, as it is Well the inner tube must necessarily be formed of fiexible material and consequently it is of importance that the spreader plate be either plated With noncorrosive material or formed of highly noncorrosive material and by forming Athe plate of highly non-corrosive material the necessity of plating is dispensed with, thereby reducing the cost of production and at the Sametime dispensing with a separate contact plate or disk.

Having fully described my invention .what

lCopies of this patent may be obtained for ve cents each,

I claim as new and desire to ysecure by Letters Patent, isrw- .As an improved article of manufacture, a combined longitudinal edges adapted for cont-act with the inner face of the tire, said plate curved longitudinally and the inner face provided with concentric ribs and grooves, the outermost rib of the series formed of greater height than the remaining concentric ribs of the series, all arranged, substantially as and for thepurpose specified.

In testimony that I claim the have hereunto subscribed my presence of two Witnesses.

SOLOMON E. NOLD.

above, I name 1n the Witnesses:

J oHN H. BISHOP, F. W. BOND.

by addressing the Commissioner of Patents,

Washington, D. C.

spreader and clamp plate, the

of concentric ribs 

